Colosseum Master Sashay (Japanese: コロシアムマスター リボンColosseum Master Ribbon) is the sixth Colosseum leader in Pokémon Battle Revolution, as well as the second Colosseum Master. She is also the head of Sunny Park Colosseum. Trainers in her Colosseum sometimes refer to her as "Ms. Sashay", perhaps in reference to her young appearance. Like Taylor, Sashay appears to like cute and beautiful Pokémon, which matches her nearly narcissistic views of her own beauty. Sashay also considers herself an expert dancer.

When facing her in Little Battle format, her Trainer class is changed from Colosseum Master to Little Queen, a Trainer class exclusive to her. Similarly, there is a Trainer class called Sashay Fan Club, the members of which presumably being members of a fan club with the same name.

Sashay has white skin in the Japanese version of the game. For unknown reasons, her skin tone was darkened along with Rosie's in the English release. She was also given a pair of purple shorts under her white miniskirt. She is one of a minority of characters with dark skin tones.